题解 | #汽水瓶#
汽水瓶
http://www.nowcoder.com/practice/fe298c55694f4ed39e256170ff2c205f
python3递归思路
def func(n):
h = n//3
n = (n//3)+(n%3)
if n < 2:
h +=0
elif n == 2:
h +=1
else:
h += func(n)
return h
while True:
try:
n = int(input())
if n == 0:
break
else:
print(func(n))
except:
break
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